1255516415334 has 24 divisors (see below), whose sum is σ = 2720369009592. Its totient is φ = 418492634400.

The previous prime is 1255516415299. The next prime is 1255516415347. The reversal of 1255516415334 is 4335146155521.

It is a happy number.

1255516415334 is a `hidden beast` number, since 1 + 2 + 5 + 5 + 51 + 64 + 1 + 533 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 1255516415334.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 457192 + ... + 1649259.

It is an arithmetic number, because the mean of its divisors is an integer number (113348708733).

Almost surely, 2^{1255516415334} is an apocalyptic number.

1255516415334 is an abundant number, since it is smaller than the sum of its proper divisors (1464852594258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1255516415334 is a wasteful number, since it uses less digits than its factorization.

1255516415334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2139572 (or 2139569 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The spelling of 1255516415334 in words is "one trillion, two hundred fifty-five billion, five hundred sixteen million, four hundred fifteen thousand, three hundred thirty-four".